Kinetic modelling of a fast-axial-flow CO2 laser

A six-temperature Boltzmann-equilibrium kinetics model has been developed for simulating the performance of fast-axial-flow, longitudinal-discharge CO2 lasers. The model includes the effects of electrical excitation, VV and VT collisional relaxation, thermal energy transport, distributed optical losses, and coherent radiation extraction for a CO2/N2/He/H2O mixture. Numerical predictions from the model are compared with experimental results obtained with a 2.5 kW device.

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